Looking to buy my first board and can't make up my mind.
I'm a beginner and all I want to do is come down the mountain. No tricks, no jumps.
So far I've only been snowboarding indoor on rented boards.
I want a board that's good for a beginner and will be good as I start getting better. Something that will last me some time and is good to ride in most conditions.

Of your list so far the Raygun for sure. Its one of my favorite K2's. And from K2 my go to all mountain board. Really built well and will do well for a beginner. It'll be easy to handle but you'll be able to grow with it and take it anywhere.